December 2015 Update

As you well know we’ve launched our fledgling website – you’ve been on it – and so have hundreds of other folks! We are thrilled that you found us!

Question: Can you help others find us too?

Maybe a shareable, wordless puzzle in the spirit of revealing mathematics as uncluttered and joyful would be a good start. Try out this puzzle and share it with your friends!

Credit: MacGregor Campbell @mainsequence

The puzzle here is to figure out what the puzzle is and then answer it – with as much explanation and thinking and joy that suits your curiosity and satisfaction. We’ll provide our thoughts in the next blog post. (Want an email reminder when we post a solution? Subscribe to our newsletter at the bottom of this page.)

Have fun and share the puzzle with others! Many others! Many many many others!

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Interested in purchasing a book of puzzles like this? CLICK HERE

James Tanton’s Take on Today’s Puzzle

Parents often ask me (James) what they can do to help their youngster develop their creative mathematical skills. In all seriousness I respond: “Paint a 5-by-5 grid of squares on your child’s ceiling and say nothing!”

tin ceilingI grew up with such a grid on my bedroom ceiling. My childhood home was an old Victorian house in Adelaide, Australia, and each room had a pressed-tin ceiling as was popular in past days. The pattern on the one in my room was just such a grid of squares. And every night I stared at that ceiling making up puzzles for myself. I counted squares. I counted rectangles. I looked at diagonals. But there was one challenge I made up for myself that I truly believe really made me a mathematician. That is the wordless puzzle above!

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